Caspian Gull

First winter Caspian Gull, Landbeach Tip, 15th February 2015 © James Hanlon

'...that due to the covert pattern and weak nape streaking I passed it off as a likely hybrid but further investigation suggests it is likely to be a pure Caspian (one of five present that afternoon) as it is squarely within the known range of variation and is structurally a classic bird.' JH